The longest period America has ever had without going to war was between 1935 and 1940 during the Great Depression. The facts are these: The United States has been at war for 222 years out of the last 239 years. That’s over 93% of the time! Since the Declaration of Independence was written in 1776, the U.S. has actually been at peace (albeit planning for further wars) for a total of only 21 years. Do you think America will ever make that total 25 years? I don’t!